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Phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating and preparation method and application thereof

A technology of fire-resistant coatings and prepolymers, which is applied in the direction of dyeing, flame-retardant fibers, and liquid-repellent fibers, and can solve problems such as attenuation of flame-retardant effects, high specific gravity, and intolerance to organic media.

Inactive Publication Date: 2021-02-05
静宁县恒达有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of inorganic flame retardants are low price and many varieties, but the disadvantages are large specificity, large dosage, poor water resistance, poor compatibility, and large mobility. They are used in the preparation of flame retardant sizing agents for fabrics, and the slurry has poor stability. The fabric feels poor, easy to drop powder, highly toxic, and the flame retardant effect decays over time, etc.
The advantages of organic flame retardants are high flame retardant efficiency, small specific gravity, good water resistance, and good compatibility. Personal injury and environmental pollution due to migration, and greater environmental pollution due to high halogen-containing smoke in the event of a fire
The additive flame retardant is a low-molecular compound with flame-retardant function, which is added to the non-flame-retardant polymer system by blending. Its disadvantages are that the stability of the size is poor, the flame retardancy of the fabric finished by sizing is poor, and the risk of toxicity is high.
Intrinsic flame retardants are formed by chemically bonding elements with flame retardant functions into the molecular structure of polymers through molecular design and synthesis, or hybridizing intrinsic flame retardant polymers with synthetic elements by physical blending. The polymer alloy, the fabric sizing agent prepared from it, has the advantage of improving the existence and stability of flame retardant element compounds, achieving the effect of polymer fabrics being environmentally friendly, safe, and long-term flame retardant. The disadvantage is that there are few varieties and high prices. , technically difficult

Method used

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  • Phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating and preparation method and application thereof
  • Phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating and preparation method and application thereof
  • Phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0052] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0053] (1) In a four-necked flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 50ml of xylene, 75.9g of PDCP-DGB, dilaurel with a ratio of 1:0.03 to TDI dibutyltin acid.

[0054] (2) Turn on stirring and blow nitrogen, and heat the reaction system in step (1) to 60±1°C in a water bath. After the heat preservation system is uniform, add 17.3g TDI and 6.8g DMPA dropwise within 30 minutes to keep the system temperature at 75±1°C. Insulate for 2 hours, separate and recover the upper xylene.

[0055] (3) Cool down the reaction system in step (2) to 45±1°C, then add monoethanolamine and 50ml of water, continue stirring for 1 hour, adjust the pH to 9.0, stop stirring and discharge, and obtain the phosphobora chain prepolymer intercalated Segment polyurethane waterborne copolymer. ...

no. 2 example

[0060] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0061] (1) In a four-necked flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 50ml of xylene, 76.9g of PDCP-DGB, dilaurel with a ratio of 1:0.02 to TDI dibutyltin acid.

[0062] (2) Turn on stirring and nitrogen gas, and heat the reaction system in step (1) to 65±1°C in a water bath. After the heat preservation system is uniform, add 16.2g TDI and 6.9g DMPA dropwise within 30 minutes, and keep the system temperature at 70±1°C. Insulate for 2 hours, separate and recover the upper xylene.

[0063] (3) Cool the reaction system in step (2) to 40±1°C, then add monoethanolamine and 50ml of water, continue to stir for 1 hour, adjust the pH=8.0, stop stirring and discharge, and obtain the phosphobora chain prepolymer intercalated Segment polyurethane waterborne copolymer.

[0064]...

no. 3 example

[0068] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0069] (1) In a four-neck flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 50ml xylene, 76.0g PDCP-DGB, dilaurel with a ratio of 1:0.01 to TDI dibutyltin acid.

[0070] (2) Turn on stirring and nitrogen gas, and heat the reaction system in step (1) to 65±1°C in a water bath. After the heat preservation system is uniform, add 17.0g TDI and 6.8g DMPA dropwise within 30 minutes, and keep the system temperature at 75±1°C. Keep warm for 1.5h, separate and recover the upper xylene.

[0071] (3) Cool the reaction system in step (2) to 40±1°C, then add monoethanolamine and 50ml of water, continue to stir for 1 hour, adjust the pH to 7.5, stop stirring and discharge, and obtain the phosphobora chain prepolymer intercalated Segment polyurethane waterborne copolymer.

[0072] 2. The...

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Abstract

The invention relates to the technical field of fireproof coatings, in particular to phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating and a preparation method and application thereof. The phosphorus-boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer water-based printing and dyeing fireproof coating is prepared from the raw materials in percentage by mass: 11.5%-13.5% of pigment or dye, 3.0%-4.0% of filler and 83.5%-84.5% of phosphorus-boron heterochain prepolymer block polyurethane water-based copolymer, wherein the structural formula of the copolymer is as follows (please see the specifications for the formula). Through molecular design and synthesis, phosphorus-boron flame-retardant elements and hydrophilic groups are bonded in a polymer molecular structure in a chemical bond form to obtain a water-based phosphorus-boron heterochain block copolymer; and cloth preparedfrom the fireproof coating prepared from the copolymer has the synergistic functions of low toxicity, environmental protection, low smoke, zero halogen, long-acting flame retardance, water resistanceand fire resistance.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular to a water-based printing and dyeing fireproof coating of phosphorus boron heterochain hydroxyl-terminated prepolymer block polyurethane copolymer and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Flame-retardant and fire-resistant fabrics are widely used in curtain decoration, fire-fighting clothing, fire-fighting engineering, fire-proof packaging and other fields. Most of the natural fibers and synthetic fibers woven into fabrics are flammable and easy to burn when exposed to open flames. There are fire hazards during use. Fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/673D06M15/579C08G18/76C08G18/65C08G18/64C08G18/34
CPCD06P1/5285D06P1/6735D06P1/67383D06M15/579C08G18/7621C08G18/6541C08G18/6461C08G18/348D06M2200/30D06M2200/12
Inventor 杜少辉郭润兰闫银鹏李婷崔锦峰张建茂郭军红李虎林周应萍杨保平田力慕波
Owner 静宁县恒达有限责任公司
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